답안 #255915

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
255915	2020-08-02T05:41:17 Z	반딧불(#5032)	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	14516 KB

Joker

#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")

using namespace std;

typedef long long ll;

struct dat{
    int s, e, i;
    dat(){}
    dat(int s, int e, int i): s(s), e(e), i(i){}
};
vector<dat> link[200002];

int n, m, q;
int l, r;

int chk[200002];

bool dfs(int x, int y = 1){
    chk[x] = y;
    for(auto &nxt: link[x]){
        if(l <= nxt.i && nxt.i <= r) continue;
        if(chk[nxt.e] == y) return true;
        if(chk[nxt.e] == 0 && dfs(nxt.e, 3-y)) return true;
    }
    return false;
}

int main(){
    scanf("%d %d %d", &n, &m, &q);
    for(int i=1; i<=m; i++){
        int s, e;
        scanf("%d %d", &s, &e);
        link[s].push_back(dat(s, e, i));
        link[e].push_back(dat(e, s, i));
    }

    while(q--){
        scanf("%d %d", &l, &r);
        memset(chk, 0, sizeof(chk));

        bool possible = 0;
        for(int i=1; i<=n; i++){
            if(!chk[i] && dfs(i)){
                possible = 1;
                break;
            }
        }
        printf("%s\n", possible ? "YES" : "NO");
    }
}

Compilation message

Joker.cpp: In function 'int main()':
Joker.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d", &n, &m, &q);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Joker.cpp:35:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &s, &e);
         ~~~~~^~~~~~~~~~~~~~~~~
Joker.cpp:41:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &l, &r);
         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5760 KB	Output is correct
2	Correct	3 ms	5760 KB	Output is correct
3	Correct	4 ms	5760 KB	Output is correct
4	Correct	4 ms	5760 KB	Output is correct
5	Correct	5 ms	5760 KB	Output is correct
6	Correct	4 ms	5760 KB	Output is correct
7	Correct	9 ms	5760 KB	Output is correct
8	Correct	9 ms	5760 KB	Output is correct
9	Correct	8 ms	5760 KB	Output is correct
10	Correct	10 ms	5760 KB	Output is correct
11	Correct	9 ms	5760 KB	Output is correct
12	Correct	9 ms	5760 KB	Output is correct
13	Correct	9 ms	5888 KB	Output is correct
14	Correct	8 ms	5760 KB	Output is correct
15	Correct	9 ms	5760 KB	Output is correct
16	Correct	10 ms	5760 KB	Output is correct
17	Correct	8 ms	5760 KB	Output is correct
18	Correct	10 ms	5760 KB	Output is correct
19	Correct	13 ms	5760 KB	Output is correct
20	Correct	8 ms	5760 KB	Output is correct
21	Correct	10 ms	5760 KB	Output is correct
22	Correct	8 ms	5760 KB	Output is correct
23	Correct	8 ms	5760 KB	Output is correct
24	Correct	9 ms	5760 KB	Output is correct
25	Correct	10 ms	5760 KB	Output is correct
26	Correct	9 ms	5760 KB	Output is correct
27	Correct	10 ms	5760 KB	Output is correct
28	Correct	9 ms	5760 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5760 KB	Output is correct
2	Correct	3 ms	5760 KB	Output is correct
3	Correct	4 ms	5760 KB	Output is correct
4	Correct	4 ms	5760 KB	Output is correct
5	Correct	5 ms	5760 KB	Output is correct
6	Correct	4 ms	5760 KB	Output is correct
7	Correct	9 ms	5760 KB	Output is correct
8	Correct	9 ms	5760 KB	Output is correct
9	Correct	8 ms	5760 KB	Output is correct
10	Correct	10 ms	5760 KB	Output is correct
11	Correct	9 ms	5760 KB	Output is correct
12	Correct	9 ms	5760 KB	Output is correct
13	Correct	9 ms	5888 KB	Output is correct
14	Correct	8 ms	5760 KB	Output is correct
15	Correct	9 ms	5760 KB	Output is correct
16	Correct	10 ms	5760 KB	Output is correct
17	Correct	8 ms	5760 KB	Output is correct
18	Correct	10 ms	5760 KB	Output is correct
19	Correct	13 ms	5760 KB	Output is correct
20	Correct	8 ms	5760 KB	Output is correct
21	Correct	10 ms	5760 KB	Output is correct
22	Correct	8 ms	5760 KB	Output is correct
23	Correct	8 ms	5760 KB	Output is correct
24	Correct	9 ms	5760 KB	Output is correct
25	Correct	10 ms	5760 KB	Output is correct
26	Correct	9 ms	5760 KB	Output is correct
27	Correct	10 ms	5760 KB	Output is correct
28	Correct	9 ms	5760 KB	Output is correct
29	Correct	117 ms	5888 KB	Output is correct
30	Correct	105 ms	5888 KB	Output is correct
31	Correct	92 ms	5928 KB	Output is correct
32	Correct	70 ms	5888 KB	Output is correct
33	Correct	59 ms	5888 KB	Output is correct
34	Correct	87 ms	5932 KB	Output is correct
35	Correct	108 ms	6008 KB	Output is correct
36	Correct	68 ms	5888 KB	Output is correct
37	Correct	113 ms	5888 KB	Output is correct
38	Correct	123 ms	5928 KB	Output is correct
39	Correct	106 ms	5888 KB	Output is correct
40	Correct	90 ms	5888 KB	Output is correct
41	Correct	88 ms	5888 KB	Output is correct
42	Correct	76 ms	5940 KB	Output is correct
43	Correct	58 ms	5888 KB	Output is correct
44	Correct	61 ms	5888 KB	Output is correct
45	Correct	58 ms	5888 KB	Output is correct
46	Correct	82 ms	5888 KB	Output is correct
47	Correct	78 ms	5888 KB	Output is correct
48	Correct	77 ms	5888 KB	Output is correct
49	Correct	86 ms	5888 KB	Output is correct
50	Correct	100 ms	5920 KB	Output is correct
51	Correct	75 ms	5888 KB	Output is correct
52	Correct	82 ms	5888 KB	Output is correct
53	Correct	93 ms	5888 KB	Output is correct
54	Correct	105 ms	6008 KB	Output is correct

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5760 KB	Output is correct
2	Correct	3 ms	5760 KB	Output is correct
3	Execution timed out	2099 ms	13944 KB	Time limit exceeded
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5760 KB	Output is correct
2	Correct	3 ms	5760 KB	Output is correct
3	Correct	4 ms	5760 KB	Output is correct
4	Correct	4 ms	5760 KB	Output is correct
5	Correct	5 ms	5760 KB	Output is correct
6	Correct	4 ms	5760 KB	Output is correct
7	Correct	9 ms	5760 KB	Output is correct
8	Correct	9 ms	5760 KB	Output is correct
9	Correct	8 ms	5760 KB	Output is correct
10	Correct	10 ms	5760 KB	Output is correct
11	Correct	9 ms	5760 KB	Output is correct
12	Correct	9 ms	5760 KB	Output is correct
13	Correct	9 ms	5888 KB	Output is correct
14	Correct	8 ms	5760 KB	Output is correct
15	Correct	9 ms	5760 KB	Output is correct
16	Correct	10 ms	5760 KB	Output is correct
17	Correct	8 ms	5760 KB	Output is correct
18	Correct	10 ms	5760 KB	Output is correct
19	Correct	13 ms	5760 KB	Output is correct
20	Correct	8 ms	5760 KB	Output is correct
21	Correct	10 ms	5760 KB	Output is correct
22	Correct	8 ms	5760 KB	Output is correct
23	Correct	8 ms	5760 KB	Output is correct
24	Correct	9 ms	5760 KB	Output is correct
25	Correct	10 ms	5760 KB	Output is correct
26	Correct	9 ms	5760 KB	Output is correct
27	Correct	10 ms	5760 KB	Output is correct
28	Correct	9 ms	5760 KB	Output is correct
29	Execution timed out	2099 ms	13944 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5760 KB	Output is correct
2	Correct	3 ms	5760 KB	Output is correct
3	Correct	4 ms	5760 KB	Output is correct
4	Correct	4 ms	5760 KB	Output is correct
5	Correct	5 ms	5760 KB	Output is correct
6	Correct	4 ms	5760 KB	Output is correct
7	Correct	9 ms	5760 KB	Output is correct
8	Correct	9 ms	5760 KB	Output is correct
9	Correct	8 ms	5760 KB	Output is correct
10	Correct	10 ms	5760 KB	Output is correct
11	Correct	9 ms	5760 KB	Output is correct
12	Correct	9 ms	5760 KB	Output is correct
13	Correct	9 ms	5888 KB	Output is correct
14	Correct	8 ms	5760 KB	Output is correct
15	Correct	9 ms	5760 KB	Output is correct
16	Correct	10 ms	5760 KB	Output is correct
17	Correct	8 ms	5760 KB	Output is correct
18	Correct	10 ms	5760 KB	Output is correct
19	Correct	13 ms	5760 KB	Output is correct
20	Correct	8 ms	5760 KB	Output is correct
21	Correct	10 ms	5760 KB	Output is correct
22	Correct	8 ms	5760 KB	Output is correct
23	Correct	8 ms	5760 KB	Output is correct
24	Correct	9 ms	5760 KB	Output is correct
25	Correct	10 ms	5760 KB	Output is correct
26	Correct	9 ms	5760 KB	Output is correct
27	Correct	10 ms	5760 KB	Output is correct
28	Correct	9 ms	5760 KB	Output is correct
29	Correct	117 ms	5888 KB	Output is correct
30	Correct	105 ms	5888 KB	Output is correct
31	Correct	92 ms	5928 KB	Output is correct
32	Correct	70 ms	5888 KB	Output is correct
33	Correct	59 ms	5888 KB	Output is correct
34	Correct	87 ms	5932 KB	Output is correct
35	Correct	108 ms	6008 KB	Output is correct
36	Correct	68 ms	5888 KB	Output is correct
37	Correct	113 ms	5888 KB	Output is correct
38	Correct	123 ms	5928 KB	Output is correct
39	Correct	106 ms	5888 KB	Output is correct
40	Correct	90 ms	5888 KB	Output is correct
41	Correct	88 ms	5888 KB	Output is correct
42	Correct	76 ms	5940 KB	Output is correct
43	Correct	58 ms	5888 KB	Output is correct
44	Correct	61 ms	5888 KB	Output is correct
45	Correct	58 ms	5888 KB	Output is correct
46	Correct	82 ms	5888 KB	Output is correct
47	Correct	78 ms	5888 KB	Output is correct
48	Correct	77 ms	5888 KB	Output is correct
49	Correct	86 ms	5888 KB	Output is correct
50	Correct	100 ms	5920 KB	Output is correct
51	Correct	75 ms	5888 KB	Output is correct
52	Correct	82 ms	5888 KB	Output is correct
53	Correct	93 ms	5888 KB	Output is correct
54	Correct	105 ms	6008 KB	Output is correct
55	Execution timed out	2081 ms	14516 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5760 KB	Output is correct
2	Correct	3 ms	5760 KB	Output is correct
3	Correct	4 ms	5760 KB	Output is correct
4	Correct	4 ms	5760 KB	Output is correct
5	Correct	5 ms	5760 KB	Output is correct
6	Correct	4 ms	5760 KB	Output is correct
7	Correct	9 ms	5760 KB	Output is correct
8	Correct	9 ms	5760 KB	Output is correct
9	Correct	8 ms	5760 KB	Output is correct
10	Correct	10 ms	5760 KB	Output is correct
11	Correct	9 ms	5760 KB	Output is correct
12	Correct	9 ms	5760 KB	Output is correct
13	Correct	9 ms	5888 KB	Output is correct
14	Correct	8 ms	5760 KB	Output is correct
15	Correct	9 ms	5760 KB	Output is correct
16	Correct	10 ms	5760 KB	Output is correct
17	Correct	8 ms	5760 KB	Output is correct
18	Correct	10 ms	5760 KB	Output is correct
19	Correct	13 ms	5760 KB	Output is correct
20	Correct	8 ms	5760 KB	Output is correct
21	Correct	10 ms	5760 KB	Output is correct
22	Correct	8 ms	5760 KB	Output is correct
23	Correct	8 ms	5760 KB	Output is correct
24	Correct	9 ms	5760 KB	Output is correct
25	Correct	10 ms	5760 KB	Output is correct
26	Correct	9 ms	5760 KB	Output is correct
27	Correct	10 ms	5760 KB	Output is correct
28	Correct	9 ms	5760 KB	Output is correct
29	Correct	117 ms	5888 KB	Output is correct
30	Correct	105 ms	5888 KB	Output is correct
31	Correct	92 ms	5928 KB	Output is correct
32	Correct	70 ms	5888 KB	Output is correct
33	Correct	59 ms	5888 KB	Output is correct
34	Correct	87 ms	5932 KB	Output is correct
35	Correct	108 ms	6008 KB	Output is correct
36	Correct	68 ms	5888 KB	Output is correct
37	Correct	113 ms	5888 KB	Output is correct
38	Correct	123 ms	5928 KB	Output is correct
39	Correct	106 ms	5888 KB	Output is correct
40	Correct	90 ms	5888 KB	Output is correct
41	Correct	88 ms	5888 KB	Output is correct
42	Correct	76 ms	5940 KB	Output is correct
43	Correct	58 ms	5888 KB	Output is correct
44	Correct	61 ms	5888 KB	Output is correct
45	Correct	58 ms	5888 KB	Output is correct
46	Correct	82 ms	5888 KB	Output is correct
47	Correct	78 ms	5888 KB	Output is correct
48	Correct	77 ms	5888 KB	Output is correct
49	Correct	86 ms	5888 KB	Output is correct
50	Correct	100 ms	5920 KB	Output is correct
51	Correct	75 ms	5888 KB	Output is correct
52	Correct	82 ms	5888 KB	Output is correct
53	Correct	93 ms	5888 KB	Output is correct
54	Correct	105 ms	6008 KB	Output is correct
55	Execution timed out	2099 ms	13944 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

답안 #255915

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 8.0 / 8.0

Subtask #3 0 / 25.0

Subtask #4 0 / 10.0

Subtask #5 0 / 22.0

Subtask #6 0 / 29.0

Subtask #1
6.0 / 6.0

Subtask #2
8.0 / 8.0

Subtask #3
0 / 25.0

Subtask #4
0 / 10.0

Subtask #5
0 / 22.0

Subtask #6
0 / 29.0